KindleKindle for iPhone allows Apple iPhone and iPod touch owners to read Kindle books using a simple, easy-to-use interface. You can shop for hundreds of thousands of books at www.amazon.com/kindlestore, and wirelessly transfer the books to your iPhone or iPod touch

eBooks by Kobo HDEReading: anytime. anyplace. With Kobo eReading couldn't be easier. Choose from thousands of FREE classics and over 2 million best sellers at an affordable price, download the books you want and start reading right away!

BookReader (iPhone)BookReader (iPhone) - BookReader is a beautiful way to bring your entire collection of e-books to your pocket. For the first time you can read digital books from your private collection like the paper ones. Just feel how natural is to read e-books with BookReader.
We've seen stylish and intuitive readers for the classics books, as well as for project Guttenberg collection

Tab GReaderTab GReader - Tab GReader is an optimized Google Reader client. It makes use of the iPad's large screen to show you the news using a dual pane layout.
The app is very fast and allows you to conveniently open links in multiple tabs. In addition, it supports all Google Reader features, such as star, +1, and tag editing

Scribd for iPhone/iPadScribd for iPhone/iPad - Scribd is a huge online library containing everything from study guides and recipes to analyst reports and business presentations.
The iOS app allows you to read documents from the Scribd library, save them for offline reading, share them and view editorial recommendations

WikiwebWikiweb is an innovative Wikipedia reader for iOS devices that visualizes the connections between articles

Sony Reader for iPhone/iPadSony Reader for iPhone/iPad - Sony Reader allows you to read all your favorites books while on the go. Its intuitive user interface enables a book-like reading experience on your iOS device.
The app also gives you quick access to the Sony Reader Store, where you can see your ebook library and keep up to date with new releases